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US2537367A Expired / Lapsed US ⏱️ 0.0 years remaining

Drive for air controlling grilles

Assignee: Old Carco LLC
•
Filing: 1948-07-02
•
Granted: 1951-01-09
•
Expires: 1968-07-02
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Abstract

No abstract record available.

Inventors

  • 👤 Alwin B Newton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 14:14
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/89

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1224614A Cited
US1488225A Cited
US1883735A Cited
US2028571A Cited
US2104578A Cited
US2415672A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-01-08 1954-07-10 1955-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-01-08 1958-07-10 1959-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-01-08 1962-07-10 1963-01-09 $7700.00 Window Closed / Lapsed

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